CN219753314U - Plugging device for solving water surge of dewatering well - Google Patents
Plugging device for solving water surge of dewatering well Download PDFInfo
- Publication number
- CN219753314U CN219753314U CN202321350212.3U CN202321350212U CN219753314U CN 219753314 U CN219753314 U CN 219753314U CN 202321350212 U CN202321350212 U CN 202321350212U CN 219753314 U CN219753314 U CN 219753314U
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- steel sleeve
- water
- plugging
- filter tube
- plugging device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 10
- 239000000565 sealant Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 15
- 239000003673 groundwater Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 238000004078 waterproofing Methods 0.000 description 7
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000010410 reperfusion Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model relates to a plugging device for solving the problem of water flushing of a dewatering well, and relates to the field of foundation pit dewatering engineering technology, which comprises a steel sleeve, a plugging plate and a sealing cover plate, wherein the plugging plate and the sealing cover plate are sequentially arranged along the height direction of the steel sleeve, and the steel sleeve is divided into a first plugging layer, a second plugging layer and a third plugging layer; the steel sleeve is internally provided with a filter tube, the middle part of the plugging plate is penetrated and provided with a through hole for the filter tube to pass through, and the steel sleeve is externally provided with a water pumping piece and a grouting piece which are used for being connected with the filter tube. The utility model performs sectional blocking on the steel sleeve, and adopts the pumping piece to continuously pump water before blocking so as to avoid the influence of underground water gushing on blocking effect.
Description
Technical Field
The utility model relates to the technical field of foundation pit dewatering engineering, in particular to a plugging device for solving the problem of dewatering of a dewatering well.
Background
With the limitation of urban development space, underground space utilization is deeper and deeper, a large number of buildings can relate to deep foundation pits, and in order to ensure deep foundation pit excavation construction and foundation pit excavation time base drying, foundation pit stability is ensured, and a certain number of precipitation wells are generally arranged in a building foundation slab to carry out precipitation work. In most cases, in order to meet the requirements of a construction site, a dewatering well needs to be plugged after the construction of a bottom plate is completed.
The traditional plugging method is to inject micro-expansion concrete into a well, directly weld a steel plate for plugging after the water level is plugged, but when a foundation pit with abundant underground water is plugged at a well head, the underground water continuously gushes out, and the gushed water flow is extremely easy to wash out the concrete, so that the concrete cannot be coagulated.
Disclosure of Invention
In order to solve the problem that the plugging concrete cannot be coagulated, the utility model provides a plugging device for solving the problem of water flushing of a dewatering well.
The utility model provides a plugging device for solving the problem of water flushing of a dewatering well, which adopts the following technical scheme:
the plugging device for solving the problem of water flushing of the dewatering well comprises a steel sleeve, a plugging plate and a sealing cover plate, wherein the plugging plate and the sealing cover plate are sequentially arranged along the height direction of the steel sleeve, and divide the steel sleeve into a first plugging layer, a second plugging layer and a third plugging layer; the steel sleeve is internally provided with a filter tube, the middle part of the plugging plate is penetrated and provided with a through hole for the filter tube to pass through, and the steel sleeve is externally provided with a water pumping piece and a grouting piece which are used for being connected with the filter tube.
Through adopting above-mentioned technical scheme, the staff is fixed the back with the steel casing, backfill the shutoff in proper order in to precipitation well and the steel pipe box, simultaneously in the shutoff pipe below in the steel pipe box, first shutoff layer is the shutoff earlier, install the filter tube at first, install the shutoff board again, the filter tube passes the shutoff board and fixes in the steel pipe box, with pumping piece and filter tube intercommunication realization pumping work, avoid groundwater to rewet to influence the shutoff, improve the shutoff effect, after the completion of precipitation well pipe second shutoff layer, stop pumping, carry out first shutoff layer slip casting shutoff again, at last the shutoff work of welding seal cover plate and carrying out third shutoff layer, the shutoff is effectual and convenient operation is swift.
Optionally, a first water stop strip is arranged at the through hole.
Through adopting above-mentioned technical scheme, the staff is backfilled the shutoff below the shutoff board and is accomplished the back, installs shutoff board and filter tube, and the filter tube passes the through-hole, and closely with first sealing up strip butt, avoids groundwater to leak back, improves sealed waterproof effect.
Optionally, a water stop ring is sleeved outside the steel sleeve.
By adopting the technical scheme, the water stop ring is provided with the path for prolonging the water infiltration, so that the infiltration resistance is greatly increased to achieve the anti-seepage purpose.
Optionally, a second water stop strip is attached to the upper and lower armpits of the water stop ring.
By adopting the technical scheme, the anti-permeation capability of the water stop ring is improved by the second water stop strip.
Optionally, the steel sleeve is adhered with a waterproof coiled material on the peripheral wall below the water stop ring.
Through adopting above-mentioned technical scheme, waterproofing membrane sets up the waterproof impervious ability that improves steel casing.
Optionally, the waterproof coiled material is coated with sealant near the end part of the second water stop strip.
Through adopting above-mentioned technical scheme, the sealing performance between waterproof coiled material and the second sealing strip is increased in the setting of sealing gum, further improves the outer waterproof of steel bushing, impervious ability.
Optionally, the first plugging layer sequentially adopts sand stone, curing agent and concrete for mixed plugging.
Through adopting above-mentioned technical scheme, adopt the grit to fill the solidification of the concrete shutoff section of being convenient for, groundwater is taken out through the filter tube in the grit layer, installs the back of shutoff board, carries out the slip casting of curing agent again, and curing agent infiltration gets into between the grit and solidifies.
Optionally, the second blocking layer and the third blocking layer are both blocked by concrete.
By adopting the technical scheme, the infiltration of groundwater in the dewatering well is effectively prevented by basically completing the blocking below the blocking plate after the blocking is completed, the concrete blocking can be directly adopted above the blocking plate, the construction operation is simple, and the blocking efficiency is high.
In summary, the plugging device for solving the problem of water flushing of the dewatering well has the following beneficial technical effects:
1. after a worker sets the steel sleeve and the precipitation well and fixes the steel sleeve, backfilling and plugging the precipitation well and the steel sleeve in sections, before the first plugging layer is plugged, firstly installing a filter tube and a plugging plate, then communicating a pumping piece with the filter tube to realize pumping work, so that the influence of groundwater infiltration on plugging can be avoided, then grouting a filler into the second plugging layer, continuously working a water pump during the period, stopping pumping work after the second plugging layer finishes concrete pouring, injecting a curing agent into the filter tube to complete plugging of the first plugging layer through a grouting machine, welding a sealing cover plate, and finally pouring concrete for the third plugging layer, thereby continuously pumping water by utilizing the pumping piece and the filter tube to effectively avoid the influence of groundwater infiltration in the precipitation well on the steel sleeve plugging concrete, and being convenient and fast, and high in efficiency;
2. the waterproof ring and the waterproof coiled material are arranged outside the steel sleeve, so that the waterproof and impervious capacities are further improved.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
reference numerals: 1. a steel sleeve; 2. a plugging plate; 3. sealing the cover plate; 4. a first blocking layer; 5. a second blocking layer; 6. a third blocking layer; 7. a filter tube; 8. a water pumping member; 9. grouting pieces; 10. a first water stop strip; 11. a water stop ring; 12. the second water stop strip; 13. waterproof coiled materials; 14. sealing glue; 15. dewatering well; 16. a bottom plate; 17. a base underlayment; 18. a connecting pipe; 19. and a control valve.
Detailed Description
The present utility model will be described in further detail with reference to fig. 1.
The embodiment of the utility model discloses a plugging device for solving the problem of water gushing of a dewatering well, which comprises a steel sleeve 1, a plugging plate 2 and a sealing cover plate 3, wherein the plugging plate 2 and the sealing cover plate 3 are sequentially arranged along the height direction of the steel sleeve 1 to divide the steel sleeve 1 into a first plugging layer 4, a second plugging layer 5 and a third plugging layer 6; after the steel sleeve 1 and the dewatering well 15 are fixed by the staff, the steel sleeve 1 and the dewatering well 15 are blocked in sections.
The steel sleeve 1 is sleeved with the water stop ring 11, the water stop ring 11 is welded and fixed with the steel sleeve 1, the water stop ring 11 is made of water stop steel plates, second water stop strips 12 are respectively stuck to the upper and lower armpits of the water stop ring 11, and the second water stop strips 12 are water-swelling water stop strips, so that the anti-seepage capability is improved.
The steel sleeve 1 is equipped with waterproofing membrane 13 in the wall subsides of the week below the water stop ring 11, before pouring building bottom plate 16, after need lay the waterproof layer on foundation bed course 17, pour the work, adopts the mode of laying waterproofing membrane 13 in this embodiment, turns up the laminating with steel sleeve 1 week wall after laying the water coil to steel sleeve 1 week wall, and waterproofing membrane 13 and the second sealing strip 12 butt of water stop ring 11 lower armpit, improves waterproof, impervious ability. The end part of the second water stop strip 12 of the waterproof coiled material 13 is coated with sealing glue 14, and the sealing glue 14 is water-swelling sealing glue 14.
The steel sleeve 1 is internally provided with a filter tube 7, the middle part of the plugging plate 2 is penetrated and provided with a through hole for the filter tube 7 to pass through, the center line of the through hole coincides with the center line of the plugging plate 2, the through hole is provided with a first water stop strip 10, and the first plugging layer 4 sequentially adopts sand and stone, curing agent and concrete for mixed plugging. The staff carries out grit backfill back installation filter tube 7 to first shutoff layer 4, and the filtration pore section of filter tube 7 is located the grit in situ, and after backfilling, reperfusion concrete installs shutoff board 2 to appointed high back, and shutoff board 2 and steel pipe cover welding back, and filter tube 7 passes the through-hole on the shutoff board 2.
The steel sleeve 1 is provided with a water pumping piece 8 and a grouting piece 9 which are connected with the filter tube 7, the water pumping piece 8 is a water pump, the grouting piece 9 is a grouting pump, the water pump is communicated with the grouting pump, the middle part of the connecting pipe 18 is communicated with the filter tube 7, two ends of the connecting pipe 18 are respectively provided with a control valve 19 for controlling the water pump or the grouting pump to be communicated with the filter tube 7, when a worker carries out backfilling of the first plugging layer 4, the control valve 19 close to the water pump is opened, so that the water pump continuously works, groundwater in a dewatering well 15 is pumped out, and the influence of the groundwater on concrete solidification is avoided.
After the concrete plugging of the part, far away from the dewatering well 15, of the first plugging layer 4 is completed, the plugging plate 2 is welded, concrete is poured on the plugging plate 2 to perform the plugging of the second plugging layer 5, meanwhile, the control valve 19 close to the grouting pump is controlled to be opened, the grouting pump is used for conveying curing agent to the first plugging layer sand stone layer through the filter tube 7, penetrating into the sand stone gap for curing, cutting off the filter tube 7 to the height of the welded sealing cover plate 3, welding the sealing cover plate 3 with the filter tube 7 and the steel sleeve 1, simultaneously completing the plugging work of the first plugging layer 4 and the second plugging layer 5, and finally, pouring concrete on the sealing cover plate 3 to the ground height to complete the third plugging layer 6. The concrete adopts the water-proofing agent and the expanding agent.
The implementation steps of the plugging device for solving the problem of water flushing of the dewatering well in the embodiment of the utility model are as follows:
step one: the steel sleeve 1 is fixed; after the foundation pit is excavated and the bottom is found and before the bottom plate 16 is poured, the surface of the dewatering well 15 is leveled, and the dewatering well 15 is guaranteed to be leveled with the substrate. The water stop ring 11 is welded with the steel sleeve 1, and the welded steel sleeve 1 is fixed on a wellhead above the center of the dewatering well 15;
step two: paving a waterproof coiled material 13 on the foundation base cushion layer 17, and turning up the waterproof coiled material 13 to the bottom of a water stop steel plate at the outer side of the waterproof steel sleeve 1;
step three: the upper and lower armpits of the water stop ring 11 are respectively stuck with a first water stop strip 10, and the lower armpits are treated by brushing water-swelling sealant 14;
step four: backfilling the first plugging layer 4: backfilling the lower part of the bottom plate 16 below the water well 15 by adopting graded sand, inserting the steel pipe filter tube 7 when backfilling to the position 1 meter below the bottom plate 16, simultaneously connecting the steel pipe filter tube 7 and a water pump, continuously backfilling the graded sand to the elevation of the bottom plate 16 of the building, backfilling the concrete added with an expanding agent and a waterproofing agent to the position below the plugging plate 2, continuously working the water pump during backfilling, welding the outer ring of the plugging plate 2 with the steel sleeve 1, and sealing the position of a through hole by using a first water stop bar 10;
step five: the first plugging layer 4 is plugged and the second plugging layer 5 is plugged: the concrete backfilling elevation added with the expanding agent and the waterproofing agent is up to the lower part of the sealing cover plate 3, the water pump is closed, the grouting pump is started, curing agents such as cement slurry, water glass liquid and the like are injected into the well pipe to fill gaps among sand and stones in the well pipe to achieve the purpose of sealing the well pipe, the blocking of the first blocking layer 4 is completed, the steel pipe filter pipe 7 is cut off at the elevation position at the bottom part of the sealing cover plate 3, the sealing cover plate 3 is covered and welded with the steel sleeve 1, and the blocking of the second blocking layer 5 is completed;
step six: and (3) plugging by a third plugging layer 6: and backfilling the concrete added with the expanding agent and the waterproof agent on the sealing cover plate 3 to reach the ground, and completing the plugging of the third plugging layer 6.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The utility model provides a solve plugging device that dewatering well gushed water which characterized in that: the sealing device comprises a steel sleeve (1), a sealing plate (2) and a sealing cover plate (3), wherein the sealing plate (2) and the sealing cover plate (3) are sequentially arranged along the height direction of the steel sleeve (1), and the steel sleeve (1) is divided into a first sealing layer (4), a second sealing layer (5) and a third sealing layer (6); the novel filter is characterized in that a filter tube (7) is arranged in the steel sleeve (1), a through hole for the filter tube (7) to pass through is formed in the middle of the plugging plate (2), and a water pumping piece (8) and a grouting piece (9) which are used for being connected with the filter tube (7) are arranged outside the steel sleeve (1).
2. The plugging device for solving the problem of water gushing of dewatering wells according to claim 1, wherein: the through hole is provided with a first water stop strip (10).
3. The plugging device for solving the problem of water gushing of dewatering wells according to claim 1, wherein: the steel sleeve (1) is sleeved with a water stop ring (11).
4. A plugging device for resolving a water kick in a dewatering well according to claim 3, wherein: the upper and lower armpits of the water stop ring (11) are stuck with second water stop strips (12).
5. The plugging device for solving the problem of water flushing of a dewatering well according to claim 4, wherein: the waterproof coiled material (13) is adhered to the peripheral wall below the water stop ring (11) of the steel sleeve (1).
6. The plugging device for solving the problem of water flushing of a dewatering well according to claim 5, wherein: the end part of the waterproof coiled material (13) close to the second water stop strip (12) is coated with sealant (14).
7. The plugging device for solving the problem of water gushing of dewatering wells according to claim 1, wherein: the second blocking layer (5) and the third blocking layer (6) are both blocked by concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350212.3U CN219753314U (en) | 2023-05-30 | 2023-05-30 | Plugging device for solving water surge of dewatering well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350212.3U CN219753314U (en) | 2023-05-30 | 2023-05-30 | Plugging device for solving water surge of dewatering well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219753314U true CN219753314U (en) | 2023-09-26 |
Family
ID=88074468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321350212.3U Active CN219753314U (en) | 2023-05-30 | 2023-05-30 | Plugging device for solving water surge of dewatering well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219753314U (en) |
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2023
- 2023-05-30 CN CN202321350212.3U patent/CN219753314U/en active Active
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